Bit Timer/Event Counter 2 Interval Time - NEC PD78076 User Manual

TCL17 TCL16 TCL15 TCL14
0 0 0 0
0 0 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
Other than above
Remarks 1. f
X
2. MCS : Bit 0 of oscillation mode selection register (OSMS)
3. TCL14 to TCL17 : Bits 4 to 7 timer clock select register 1 (TCL1)
4. Figures in parentheses apply to operation with f
238
CHAPTER 9 8-BIT TIMER/EVENT COUNTERS 1 AND 2
Table 9-7. 8-Bit Timer/Event Counter 2 Interval Time
Minimum Interval Time
MCS = 1 MCS = 0
TI2 input cycle
TI2 input cycle
2
2 x 1/f 2 x 1/f
X X
(400 ns) (800 ns)
2 3
2 x 1/f 2 x 1/f
X X
(800 ns) (1.6 s)
2 3 x 1/f 2 4 x 1/f
X X
(1.6 s) (3.2 s)
2 4 x 1/f 2 5 x 1/f
X X
(3.2 s) (6.4 s)
5 6
2 x 1/f 2 x 1/f
X X
(6.4 s) (12.8 s)
2 6 x 1/f 2 7 x 1/f
X X
(12.8 s) (25.6 s)
2 7 x 1/f 2 8 x 1/f
X X
(25.6 s) (51.2 s)
2 8 x 1/f 2 9 x 1/f
X X
(51.2 s) (102.4 s)
9 10
2 x 1/f 2 x 1/f
X X
(102.4 s) (204.8 s)
2 11 x 1/f 2 12 x 1/f
X X
(409.6 s) (819.2 s)
Setting prohibited
: Main system clock oscillation frequency
Maximum Interval Time
MCS = 1 MCS = 0
8
2 x TI2 input cycle
8
2 x TI2 input cycle
9 10
2 x 1/f 2 x 1/f
X X
(102.4 s) (204.8 s)
10 11
2 x 1/f 2 x 1/f
X X
(204.8 s) (409.6 s)
2 11 x 1/f 2 12 x 1/f
X X
(409.6 s) (819.2 s)
2 12 x 1/f 2 13 x 1/f
X X
(819.2 s) (1.64 ms)
13 14
2 x 1/f 2 x 1/f
X X
(1.64 ms) (3.28 ms)
2 14 x 1/f 2 15 x 1/f
X X
(3.28 ms) (6.55 ms)
2 15 x 1/f 2 16 x 1/f
X X
(6.55 ms) (13.1 ms)
2 16 x 1/f 2 17 x 1/f
X X
(13.1 ms) (26.2 ms)
17 18
2 x 1/f 2 x 1/f
X X
(26.2 ms) (52.4 ms)
2 19 x 1/f 2 20 x 1/f
X X
(104.9 ms) (209.7 ms)
= 5.0 MHz.
X
Resolution
MCS = 1 MCS = 0
TI2 input edge cycle
TI2 input edge cycle
2
2 x 1/f 2 x 1/f
X X
(400 ns) (800 ns)
2 3
2 x 1/f 2 x 1/f
X X
(800 ns) (1.6 s)
2 3 x 1/f 2 4 x 1/f
X X
(1.6 s) (3.2 s)
2 4 x 1/f 2 5 x 1/f
X X
(3.2 s) (6.4 s)
5 6
2 x 1/f 2 x 1/f
X X
(6.4 s) (12.8 s)
2 6 x 1/f 2 7 x 1/f
X X
(12.8 s) (25.6 s)
2 7 x 1/f 2 8 x 1/f
X X
(25.6 s) (51.2 s)
2 8 x 1/f 2 9 x 1/f
X X
(51.2 s) (102.4 s)
9 10
2 x 1/f 2 x 1/f
X X
(102.4 s) (204.8 s)
2 11 x 1/f 2 12 x 1/f
X X
(409.6 s) (819.2 s)